klei
To lean. Oldest form *lei-, becoming *klei- in centum languages.
Derivatives include decline, lid, climax, climate, and ladder.
I. Full-grade form *klei-. 1. Suffixed form *klei-n-. decline, incline, recline, from Latin -clnre, to lean, bend. 2. Suffixed form *klei-tro-. clitellum, from Latin cltellae, packsaddle, from diminutive of *cltra, litter. 3. Suffixed form *klei-wo-. acclivity, declivity, proclivity, from Latin clvus, a slope.
II. Suffixed o-grade form *kloi-tr-. ladder, from Old English hld(d)er, ladder, from Germanic *hlaidri-. (Pokorny lei- 600.)
klei in centum languages - Derivatives include decline, lid, climax, climate, and ladder
(i) from Germanic *hlid-, that which bends over, cover
(ii) from Greek *kl-, with lengthening of obsucre origin.
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